Tag: a-hash-table

All the articles with the tag "a-hash-table".

• LeetCode 142 Linked List Cycle II

  23 Aug, 2026

  Solutions for LeetCode 142, medium, tags: hash table, linked list, two pointers.

• LeetCode 846 Hand of Straights

  20 Aug, 2026

  Solutions for LeetCode 846, medium, tags: array, hash table, greedy, sorting.

• LeetCode 41 First Missing Positive

  28 Jul, 2026

  Solutions for LeetCode 41, hard, tags: array, hash table.

• LeetCode 437 Path Sum III

  23 Jul, 2026

  Solutions for LeetCode 437, medium, tags: tree, depth-first search, binary tree, prefix sum, hash table.

• LeetCode 127 Word Ladder

  29 Jun, 2026

  Solutions for LeetCode 127, hard, tags: hash table, string, breadth-first search.

• LeetCode 36 Valid Sudoku

  21 Jun, 2026

  Solutions for LeetCode 36, medium, tags: array, hash table, matrix.